Why Must Read Constitutional Law (University Casebook Series)?

This casebook was required reading for my 1L Con Law class. The class focused mostly on the Commerce Clause, Spending/taxing power, and Substantive Due Process. This book does an excellent job of splitting up portions of the constitution and explaining how the legal principles have evolved over the past 230 years. The cases can be dense, but the commentary is excellent. Both authors are world-class Constitutional Law Scholars. Sullivan is the former Dean of SLS and SCOTUS advocate. Feldman is an HLS professor who was one of the four Con Law scholars who testified in front of Congress during the impeachment hearings. It's an expensive but quality con law casebook.